Bộ 10 đề ôn thi học sinh giỏi Tiếng anh lớp 9 có đáp án (Đề 10)

Adam did his research by A. interviewing people. B. investigating on the Internet. C. reading about the subject.

2/105

Adam did his research by

interviewing people.

investigating on the Internet.

reading about the subject.

Giải thích

Chọn đáp án A